257014782

素因数分解:

$2^1\times 3^6\times {\mathrm{409}}^1\times {\mathrm{431}}^1$

素因数の和:860

約数の個数: 56

約数和(自身を含む): 580776480

約数和(自身を除く): 323761698

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 409, 431, 486, 729, 818, 862, 1227, 1293, 1458, 2454, 2586, 3681, 3879, 7362, 7758, 11043, 11637, 22086, 23274, 33129, 34911, 66258, 69822, 99387, 104733, 176279, 198774, 209466, 298161, 314199, 352558, 528837, 596322, 628398, 1057674, 1586511, 3173022, 4759533, 9519066, 14278599, 28557198, 42835797, 85671594, 128507391, 257014782]

約数ペア:

[(1, 257014782), (2, 128507391), (3, 85671594), (6, 42835797), (9, 28557198), (18, 14278599), (27, 9519066), (54, 4759533), (81, 3173022), (162, 1586511), (243, 1057674), (409, 628398), (431, 596322), (486, 528837), (729, 352558), (818, 314199), (862, 298161), (1227, 209466), (1293, 198774), (1458, 176279), (2454, 104733), (2586, 99387), (3681, 69822), (3879, 66258), (7362, 34911), (7758, 33129), (11043, 23274), (11637, 22086)]